#509B2D
Closest named color: Grass Green (#3F9B0B). oklch(61.8% 0.162 137.5), rgb(80, 155, 45).
Aa
Black text reads best on this color (6.06:1).
About this color
#509B2D is a medium-dark, vivid green. In OKLCH its lightness is 62%, its chroma 0.162 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass Green (#3F9B0B), ΔE 0.025 away. Black text reads best on it, at 6.06:1.
| Hue family | Greens |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.162) |
| Temperature | in between |
| Nearest name | Grass Green (#3F9B0B) |
| Black text | 6.06:1 |
| White text | 3.46:1 |
Values
| HEX | #509B2D |
| RGB | rgb(80, 155, 45) |
| HSL | hsl(101, 55%, 39%) |
| OKLCH | oklch(61.8% 0.162 137.5) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #509B2D | 3.46:1 | AA large text | Lc -67.3 | Content text, not long reading |
| Black text on #509B2D | 6.06:1 | AA | Lc 42.2 | Non-text elements, placeholder text |
| #509B2D text on white | 3.46:1 | AA large text | Lc 61.9 | Content text, not long reading |
| #509B2D text on black | 6.06:1 | AA | Lc -39.8 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F2F7F0
oklch(97% 0.011 136.6)
-
Step 100
100
#E3EEDF
oklch(93.7% 0.023 137.2)
-
Step 200
200
#CCE0C4
oklch(88.4% 0.043 136.7)
-
Step 300
300
#A8CD9B
oklch(80.8% 0.079 137.7)
-
Step 400
400
#79B362
oklch(70.7% 0.127 137.3)
-
Step 500
500 (this color)
#509B2D
oklch(61.8% 0.162 137.5)
-
Step 600
600
#398800
oklch(55.5% 0.17 137.5)
-
Step 700
700
#2F7300
oklch(49.2% 0.15 137.5)
-
Step 800
800
#255E00
oklch(42.7% 0.13 137.5)
-
Step 900
900
#224E0B
oklch(37.8% 0.106 137.5)
-
Step 950
950
#152E0A
oklch(27.1% 0.067 137.5)
#509B2D with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #A08E1C | 0.103 |
| Deuteranopia (no green cones) | #968737 | 0.105 |
| Tritanopia (no blue cones) | #4B9585 | 0.114 |
| Achromatopsia (no color) | #8A8A8A | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #509B2D
#509B2D
oklch(61.8% 0.162 137.5)
- #AD62C4
#AD62C4
oklch(61.9% 0.161 317.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #509B2D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass Green #3F9B0B ΔE 0.025
- Grassy Green #419C03 ΔE 0.026
- Mid Green #50A747 ΔE 0.037
- Muted Green #5FA052 ΔE 0.042
- Olive Drab #6B8E23 ΔE 0.043
- Flat Green #699D4C ΔE 0.043
- Dark Yellow Green #728F02 ΔE 0.044
- Sap Green #5C8B15 ΔE 0.044
Use #509B2D in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.